3.5 | 2 ratings Rate this file 18 downloads (last 30 days) File Size: 24.01 KB File ID: #5481

Building Sundials

12 Jul 2004 (Updated 19 Jun 2009)

Create your own sundial with MATLAB.

File Information
Description	If carefully built, a sundial is perfectly capable of keeping accurate time. The problem is that you need a different sundial for every combination of latitude, longitude, and day of the year. Fortunately MATLAB® can make this a manageable problem. By turning this procedure around, you can also use MATLAB to tell you which way is north. The algorithms used here for MATLAB sundial creation were adapted from http://www.de-zonnewijzerkring.nl/eng/
MATLAB release	MATLAB 7 (R14)
Zip File Content
HTML Files	Building Sundials
Other Files	html/sundial.png, html/sundial_01.png, html/sundial_02.png, html/sundial_03.png, html/sundial_04.png, license.txt, sundial.m, sunshadow.m

Tags for This File
Everyone's Tags	article, astronomy, clock, matlab, paper, sundials, whitepaper
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Comments and Ratings (2)
15 Mar 2005	martyn dorey	Fantastic. Would be good to include a vertical mounted sundial too.
27 Sep 2005	IDRIS ELLIS	why not just some simple trigonometry? After all, all of the original ALGORITHMS were in that formay: stuff having to put it into some programme which I do not have the machine for: the TI-81 is more than sufficent to the task, if one has the proper ALGORITHMS.

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Updates
19 Jun 2009	Updating copyright line.

Tag Activity for this File
Tag	Applied By	Date/Time
whitepaper	Ned Gulley	22 Oct 2008 07:27:33
article	Ned Gulley	22 Oct 2008 07:27:33
sundials	Ned Gulley	22 Oct 2008 07:27:33
matlab	Ned Gulley	22 Oct 2008 07:27:33
paper	Cristina McIntire	07 Nov 2008 12:38:37
astronomy	Ned Gulley	12 Nov 2008 00:33:38
clock	Ned Gulley	14 Nov 2008 21:19:14

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